Updated as per James P. Tuttle's The Hawk Moths of North America, August 23, 2010

Stephenson County, Illinois
Sphingidae

Forty-two Sphingidae species are listed in the USGS for Illinois. Not all of the species are reported (only one, Darapsa myron, by USGS as of April 2008) in Stephenson County in northern Illinois. I have added some species which I feel may be present (at least occasionally).

It is hoped that this checklist, with the thumbnails and notes, will help you quickly identify the moths you have encountered.

A "WO" after the species name indicates that I have no confirmed reports of this species in Stephenson County, but I (William Oehlke) expect that these moths are present.

Please help me develop this list with improved, documented accuracy by sending sightings (species, date, location), preferably with an image, via email to Bill Oehlke.

Sphinginae subfamily

Sphingini tribe:

Agrius cingulata, WO Pink-spotted hawkmoth, possible but unlikely stray

This species is a strong migrant and adults nectar from deep-throated flowers including moonflower (Calonyction aculeatum), morning glory (Convolvulus), honey suckle (Lonicera) and petunia (Petunia species).

Ceratomia amyntor WO, the Elm Sphinx or Four-horned Sphinx
The upperside of the forewing is brown with dark brown and white markings including a white costal area near the wing base, dark streaks along the veins, and a white spot in the cell. Larvae feed on Elm (Ulmus), birch (Betula), basswood (Tilia), and cherry (Prunus).

Ceratomia catalpae WO, the Catalpa Sphinx

The upperside of the forewing is yellowish brown with no white markings, but there are indistinct black lines and dashes. The cell spot is gray with a black outline and the upperside of the hindwing is yellowish brown with obscure lines.
Catalpa is the larval host.

Ceratomia hageni WO, Hagen's Sphinx or Osage Orange Sphinx

The upperside of the forewing is gray with a green tint and has dark indistinct wavy lines, and pale gray patches at the wing tip and along the costa.

Ceratomia undulosa WO, the Waved Sphinx

The upperside of the forewing is pale brownish gray with wavy black and white lines and a black-outlined white cell spot.

Dolba hyloeus WO, the Pawpaw Sphinx
The upperside of the forewing is dark brown with a dusting of white scales. Some moths have patches of reddish or yellowish brown on the wings.
Larve are not limited to pawpaw.

Lapara bombycoides WO, the Northern Pine Sphinx

The upperside of the forewing is gray with heavy black bands. The upperside of the hindwing is brownish gray with no markings. If you have pines, you might have this species. It flies on P.E.I.

Lintneria eremitus WO, the Hermit Sphinx

The upperside of the forewing is gray-brown with wavy lines, black dashes, and one or two small white spots near the center of the costa.

Manduca quinquemaculatus WO, the Five-spotted Hawkmoth

This large bodied moth flies in tobacco fields and vegetable gardens (potatoes, tomatoes) and wherever host plants are found.

Manduca sexta WO, the Carolina Sphinx

The upperside of the hindwing is banded with black and white and has two black zigzag median lines that are very close together with hardly any white showing between them
Larvae get very large and can strip a tomato plant.

Neococytius cluentius, WO Cluentius sphinx, unlikely stray, but possible
The upper side of the forewing is blurry black with orange markings.
The upperside of the hindwing is black with orange at the base and orangish yellow patches between the veins, forming a band across the wing.

Paratrea plebeja WO, unlikely stray, but possible. the Plebeian Sphinx

The upperside of the forewing is gray with indistinct black and white markings. There is a series of black dashes from the base to the tip, and a small white cell spot.

Sphinx canadensis WO, Sphinx canadensis, the Canadian Sphinx, is not common, and is not often reported anywhere, but it might possibly be present in Cook County.

Larval hosts are white ash (Fraxinus americana) and blueberry (Vaccinium). unlikely

Sphinx chersis WO, the Northern Ash Sphinx or Great Ash Sphinx

The upperside of the forewing is soft dark gray to blue-gray with a series of black dashes, one of which reaches the wing tip.

Sphinx drupiferarum WO, the Wild Cherry Sphinx

Forewings, long and slender, are held close to the body when the moth is at rest. We have them on P.E.I., but I do not see them nearly as frequently as I see the other Sphingidae.

Sphinx gordius WO, the Apple Sphinx

Colouration and markings are highly variable from one specimen to another. The fringes on forewing are mostly black with some white; those on the hindwing are mostly white with a few black patches.

Sphinx kalmiae WO, the Laurel Sphinx

The lower forewings are predominantly brownish-yellow with a fairly wide dark bar along the inner margin. At rest the wings hug the body, giving the moth a long slender look.

Sphinx luscitiosa WO, the Canadian Sphinx or Clemen's Sphinx
The upperside of the forewing is yellowish gray in males and pale gray with a faint yellow tint in females. In both sexes, the dark border on the outer margin widens as it approaches the inner margin.

Sphinx poecila WO, the Poecila Sphinx

If you have blueberries in the woods, then you probably have the Poecila Sphinx. They are pretty common here on Prince Edward Island, but don't fly too far south of Massachusetts, being replaced by Sphinx gordius in Connecticut.

vashti

Smerinthini Tribe:

Amorpha juglandis WO, the Walnut Sphinx

The adults are also highly variable; sometimes wings of an individual may be all one color or may have several colors, ranging from pale to dark brown, and may have a white or pink tinge.
See the file for the female; she is different.

Pachysphinx modesta WO, the Modest Sphinx or Poplar Sphinx,

This moth has a large, heavy body, and females can be remarkably plump.

Paonias excaecata WO, the Blinded Sphinx,

The outer margin of the forewing is quite wavy. There is a dark cell spot and a dark oblique line mid wing from the costa almost to the inner margin. Basic ground colour is pinkish brown.

Flight would be June-July.

Paonias myops WO, the Small-eyed Sphinx

This small species is probably widespread and common. This species ranges across North America.

The hindwings have a small blue eyespot ringed with black on a yellow background.

Smerinthus cerisyi WO, the Cerisyi's Sphinx or One-eyed Sphinx,

Larvae feed on poplars and willows. Flight would be from late May-July as a single brood. Questionable, generally more northerly species

Smerinthus jamaicensis WO, the Twin-spotted Sphinx

This moth is widely distributed and fairly common, and it is recorded in Ingham.

Along the East Coast, it flies from P.E.I. to Florida.

Macroglossinae subfamily


Dilophonotini Tribe:

Aellopos titan WO, the Titan Sphinx.

The body is dark brown with a wide white stripe across the abdomen. The wings are dark brown. It is very similar to above species, but the upperside of the hindwing has pale patches along the costa and inner margin. unlikely, rare stray

Erinnyis ello WO, the Ello Sphinx
The abdomen has very distinct gray and black bands. The female's forewing upperside is pale gray with a few dark dots near the outer margin. The male's forewing upperside is dark gray and brown with a black band running from the base to the tip. unlikely stray

Erinnyis obscura, the Obscure Sphinx, WO,

During the night adults nectar at flowers, including bouncing bet (Saponaria officinalis) and Asystasia gangetica beginning at dusk.

July and August are flight times in the southern states. unlikely, rare stray

See Hemaris comparison to help distinguish the next three species.

Hemaris diffinis WO, the Snowberry Clearwing or Bumblebee Moth,

The moth flies along forest edges and in meadows, gardens and brushy fields. Day-flying adults nectar at lantana, dwarf bush honeysuckle, snowberry, orange hawkweed, thistles, lilac, Canada violet, etc.

Hemaris gracilis WO, possible but unlikely, the Slender Clearwing or Graceful Clearwing
Hemaris gracilis is distinguished from similar species by a pair of red-brown bands on the undersides of the thorax, which varies from green to yellow-green dorsally and sometimes brown with white underneath. questionable

Hemaris thysbe WO, the Hummingbird Clearwing

This interesting day flier is confirmed for Cook and McHenry, and is likely common.

They are widely distributed in the east from P.E.I. to Florida.

Philampelini Tribe:

Eumorpha achemon WO, the Achemon Sphinx

This moth is confirmed for nearby McHenry County. It is fairly often reported along the east coast from southern New Jersey to central Maine.
Note the differences between this moth and the Pandorus Sphinx.

Eumorpha pandorus WO/DR the Pandorus Sphinx

If you have Grape or Virginia Creeper nearby, then you probably have this species. I often get asked to identify larvae from areas where they have not previously been reported.

Eumorpha pandorus, Freeport, August 4, 2008, Doreen Rogers

Macroglossini Tribe:

Amphion floridensis WO, the Nessus Sphinix

This day flier is widely distributed. If you have Virginia Creeper, you probably have the Nessus Sphinx.

Two bright, distinct, narrow yellow bands are often visible on the abdomen.

Darapsa choerilus WO, the Azalea Sphinx

They are common in New Jersey and common here on Prince Edward Island.

You will often see this species listed as Darapsa pholus, especially in older literature.

Darapsa myron USGS, the Virginia Creeper Sphinx or the Grapevine Sphinx
This moth is recorded on the U.S.G.S. site for Stephenson County, and it is probably common.
It is widely reported as far north as southern Maine. If you have the foodplants indicated in the common names, you probably have this species nearby.

Darapsa versicolor WO, the Hydrangea Sphinx

If you have hydrangea growing near a stream, then you may have the Hydrangea Sphinx.

However, it probably is uncommon.

Deidamia inscriptum WO, the Lettered Sphinx

The moth's outer margin of the forewing is deeply scalloped. The upperside is light brown with dark brown markings. There is a small black and white spot near the tip. The upperside of the hindwing is orange-brown with a dark brown outer margin and median line.

Hyles gallii WO, the Bedstraw Hawk Moth or Gallium Sphinx

This species is not confirmed in Stephenson County, but it might be present.

Some years I see them on P.E.I., some years, I do not.

Hyles lineata WO, the White-lined Sphinx

Adults usually fly at dusk, during the night, and at dawn, but they also fly during the day over a wide variety of open habitats including deserts, suburbs, and gardens.

Sphecodina abbottii WO, the Abbott's Sphinx

This moth is very much under reported on USGS. It is a rapid day flier so is probably not in too many collections.

Grape is a popular larval host.

Xylophanes tersa WO, possible stray, generally more southerly, the Tersa Sphinx

The upperside of the forewing is pale brown with lavender-gray at the base and has dark brown lengthwise lines throughout.

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